Absolutely no problem with Russians, it is all no more Mr. Nice Guy in every Arena to hindustanis. As indians cry when russians want to sell things to certain nations hindustanis try to stop them which has been cutting their revenues while hindustanis buy themselves from west at exaggerated price tags.
Since Russians are not interested in giving all critical information regarding PAK-FA ungrateful hindustanis accuse them of "don't have sufficient technology and money" which is hilarious since they sell Oil and Gas while hindustani sells penuts compared.
Grateful and Ungrateful is not a matter when it comes to the national security.
We only care about our national security and interest.We are not that dumb to take the so called gratefulness and suffered in rest of decades like something happened to our friends.
Russians cause so much delay and that is because their shortage of money and manpower
Best example is a INS Vikramaditya
But when our Air Force gave order to C-130j.Americans delivered its first aircraft
6 months earlier.
But we are still in favour for Russians because they gave us Technology .
If we want to spend 6billion $ for a project work we need to ensure that system is worth for it.